Explained by The Systems Theory.
Unhealthy elements of a system do not "want" to die; they want to return to health stability, and they want that to happen as soon as possible.
Every system is inertial, every system has such a property as inertia. Inertia means that every process takes time, no change can happen instantly. The larger a system is the more inertial it is, the more time is needed for a system to change. In a case of a drastic changes in an environment, inertia will not allow a system to quickly initiate required changes. When parts of a system begin communicate on what changes needed to be made, inertia leads to the situation when all individual/partial changes are based on the previous states, previous experience and do not represent adequate solutions.
Hence, the transition from a democratic policies to authoritarian policies is inevitable and unavoidable.
A system where the parts almost don't interact with each other, does not evolve. Evolution happens because interactions lead to the fact that the properties of a system are large, or bigger, or wider, or broader, or richer than the sum of the properties of its parts. It means that the most important parts of a system are those which establish, provide, govern interactions between its parts. In a society, the most important people are not the strongest ones, or the richest ones, or the smartest ones but those who can effectively communicate, who have an ability to convince other people what is right or wrong thing to do, the most convincing ones (including con men).
Imagine, that for decades someone was storing every year a shed of firewood to use in the winter time. And this year the temperature was unusually cold from the very beginning. Soon one noticed that three quarters of the stored wood has been already used in just one quarter of the winter time. What to do? Where would he get more firewood? And how would he get it if he has no money left to buy any more wood?